Struct Column 

pub struct Column {

    pub name: String,
    pub ty: u32,
    pub typmod: i32,
    pub ndims: i16,
    pub collation: u32,
    pub not_null: bool,
    pub not_null_invalid: bool,
    pub has_default: bool,
    pub identity: u8,
    pub generated: u8,
    pub dropped: bool,
    pub stat_target: Option<i16>,
    pub storage: u8,
    pub compression: u8,
    pub options: Vec<String>,
    pub local: bool,
    pub inhcount: i16,
}

A column of a relation, one row of pg_attribute with a positive attnum.

Fields

name: String

The name.

ty: u32

The OID of the type.

typmod: i32

The type modifier, or -1.

ndims: i16

The number of array dimensions that the statement gives, attndims.

collation: u32

The OID of the collation, or 0.

not_null: bool

attnotnull.

not_null_invalid: bool

True when attnotnull comes from a NOT VALID not-null constraint, as attnullability is ATTNULLABLE_INVALID. The new rows cannot have a null in the column, but the rows from before the constraint can.

has_default: bool

atthasdef.

identity: u8

attidentity: a for GENERATED ALWAYS, d for GENERATED BY DEFAULT, or 0 for a column that is not an identity column.

generated: u8

attgenerated: s for a stored generated column, or 0 for a column that is not generated. The default of the column is its generation expression.

dropped: bool

attisdropped. A dropped column keeps its place, so the later columns keep their numbers, but it has no name that a query can use and no type.

stat_target: Option<i16>

attstattarget: the statistics target of SET STATISTICS, or None for the default.

storage: u8

attstorage of STORAGE or SET STORAGE, or 0 for the storage of the type.

compression: u8

attcompression: p for pglz, l for lz4, or 0 for the default method.

options: Vec<String>

attoptions: each option as name=value.

local: bool

attislocal: false for a column that only a parent table gives.

inhcount: i16

attinhcount: the number of parent tables that give the column.

Implementations

impl Column

pub fn new( name: impl Into<String>, ty: u32, typmod: i32, collation: u32, ) -> Column

A column with no constraint and no default.

Trait Implementations

impl Clone for Column

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Column

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Column

impl PartialEq for Column

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Column